MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Gigabit WiFi: Utilising ac on Campus Considerations and Benefits Higher and Further Education Manager UK&I Henry Batten

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Market Drivers for IEEE ac The need for a new, faster WiFi standard has been driven by huge increases in the numbers of WiFi enabled devices combined with users’ insatiable appetites for data consumption – WiFi is no longer a nice to have, it IS the network edge. With more and more devices hitting your networks, ac has been developed to deliver greater capacity, both in throughput and density ac Market Drivers

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Visibility of Uptake in the UK so far: 3 At the HEAnet show in Ireland October 2013 that was 1%

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. What’s in the ac Standard Very High Throughput (VHT) - up to 10x compared with11n –Wider channels: 80MHz, 160MHz, 80+80MHz(4X) –New modulation: 256-QAM(1.3X) –More MIMO streams: up to 8(2X) Well defined Beam Forming Multi-User-MIMO (MU-MIMO) ac Standard Highlights

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Data Rates in ac 5 20MHz40MHz80MHz160MHz 1 stream streams streams streams streams streams streams streams Delivered in the first generation of silicon Rates in Mbps ac Data Rate Matrix

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. DFS Not allowed in Europe Wider channels: 80Mhz and 160Mhz 6 Available Channels for ac 48 IEEE channel # 20 MHz 40 MHz 80 MHz 5170 MHz 5330 MHz 5490 MHz 5730 MHz 5735 MHz 5835 MHz 160 MHz Weather radar Not allowed in North America Dynamic Frequency Selection

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. StandardBandwidth Spatial Streams PHY Data RateReal Throughput a20 MHz154 Mbps24 Mbps n20 MHz165Mbps46 Mbps n40 MHz2300 Mbps210 Mbps n40 MHz3450 Mbps320 Mbps ac Phase I80 MHz1293Mbps210 Mbps ac Phase I80 MHz2867 Mbps610 Mbps ac Phase I80 MHz31300 Mbps910 Mbps ac Phase II160MHz1867 Mbps610 Mbps ac Phase II160 MHz21730 Mbps1200 Mbps ac Phase II160 MHz32600 Mbps1800 Mbps ac Phase II160 MHz8*6933 Mbps4900 Mbps * There are no commercial implementations that use more than 3 spatial streams Data Rate Table

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Thank You Power and space challenges are still the same Don’t expect more than 3 data streams soon (-) Higher rates available at ranges closer to the AP (-) Higher throughput efficiency mean less time (power) spent for transmit (+) Users will still observe greater net throughput (+) Rate and Range

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Questions? Predicted Uptake

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Beamforming 10 Introduced in n n had many options – no vendor implemented it ac uses a single standard for beam forming

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. By changing time (phase) of 3 transmitters, ac AP’s can create a “constructive interference” transmit beam-forming waveform (TxBF) and generate a stronger signal that clients can hear better. 11 AP 3 rd Stream 2 nd Stream 1 st Stream AP Destructive Interference, when three streams of RF energy cancel each other 11ac AP 3 rd Stream 2 nd Stream 1 st Stream Constructive Interference, when three streams of RF energy stack up each other 11ac AP 11ac AP Without Beam- forming With Beam- forming Beamforming

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. A standard 3x3:3SS n AP effective coverage at different modulation rates n 64 QAM coverage Top 450 Mbps n 16 QAM coverage Top 180 Mbps n 64 QAM coverage Top 450 Mbps n 16 QAM coverage Top 180 Mbps GbEZoneGbEZone ac 256QAM 64 QAM Top 1330 Mbps Where can I access my Wi-Fi? User is outside of RF coverage zone with lowest RX Z(e.g. -90 dBm receiving sensitivity) User is within RF coverage zone with due to reconstructed radio coverage (due to different phase) Beamforming

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Multi-User MIMO Allows a sophisticated AP (#Antennas > #Streams) to maintain high throughput even when the clients are simple (smartphones, tablets, etc…) Up to four simultaneous clients, each with one or more antennas, transmit or receive independent data streams Needs MU-MIMO beam forming support Provides better channel reuse in single channel, enables high client density – 4 x density Expected only in the second generation of silicon 13

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Survey/Plan for 5GHz coverage –Old AP placements are probably based on old requirements –Higher signal strength requirement for 256QAM data-rates 40 or 80MHz Support –Highest data rates are only available with 80MHz channels –Not all vendors are recommending 80MHz channel widths due to architectural constraints 802.3af/at PoE PD Support –Some solutions require 802.3at PoE+ to operate at full performance Multiple GigE ports per AP –Worth considering provision, but not a must-have –Possible more benefit for resilience than performance ac Design Considerations

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved ac Benefits Higher data-rates than n –Gen ac AP’s offering 1.3Gbps vs 450Mbps on 11n Greater density –Higher data-rates mean clients need less time to complete their data transfers. Leaves more space for more clients –Gen 2 AP’s will add MU-MIMO capability Better ‘n’ than ‘n’ –Testing from multiple vendors has shown an increase in performance in n chipsets when used on ac infrastructure - no need to wait for benefits Power consumption benefits on client devices –More efficient transmissions lead to lower battery requirements

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Bonjour! A friendly greeting, or death to your network?

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Bonjour - Many Challenges Advertisement Problems –Bonjour is local only, designed for home use –Others use multicast Scalability Issues –Bonjour doesn’t scale due to Location Challenges –Which services are relevant Policy and Control –Who should advertise services? –Who should learn about services?

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Service Control in Action (Bonjour) DiscoverConsolidateDistributeAdvertise Policy POLICY CONTROLLED SERVICE DISCOVERY & ADVERTISEMENT

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Service Control – Use Case 19 Administration Building Liberal Arts Building ESSID: student ESSID: staff vlan 700 Vlan 600

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Service Control - Discovery 20 Administration Building Liberal Arts Building ESSID: student ESSID: staff vlan 700 Vlan 600 Global Service Discovery List Liberal Arts - Apple TV Liberal Arts - Printer Admin Bldg - Printer

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Service Control Policy - Faculty 21 Administration Building Liberal Arts Building ESSID: student ESSID: staff vlan 700 Vlan 600 Liberal Arts - Apple TV Liberal Arts - Printer Admin Bldg - Printer

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Service Control Policy - Student 22 Administration Building Liberal Arts Building ESSID: student ESSID: staff vlan 700 Vlan 600 Global Service Discovery List Liberal Arts - Apple TV Liberal Arts - Printer Admin Bldg - Printer

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Questions???

MERU PROPRIETARY INFORMATION. © Copyright Meru Networks, Inc. All rights reserved. Thank You